#include "apue.h"

int globvar = 6;
char buf[] = "a write to stdout\n";

int main()
{
    int var;
    pid_t   pid;
    var = 88;
    if (write(STDOUT_FILENO, buf, sizeof(buf)-1) != sizeof(buf)-1)
    {
        err_sys("write error");
    }
    printf("before fork\n");

    if ((pid = fork()) < 0)
    {
        err_sys("for error");
    }
    else if (pid == 0)
    {
        globvar++;
        var++; 
    }
    else
    {
        sleep(2); 
    }

    printf("pid = %ld, glob = %d, var = %d\n", (long)getpid(), globvar, var);
    exit(0);
}
